Water treatment can be confusing. With the ever-growing list of potential contaminants making their way into drinking water, it's hard to know which is the best system for you. In this Tips for Taps piece, we take a deep dive into a popular at-home treatment option: Ion Exchange–as we ask: what is an ion exchange (IE) system, how does it work, and is it right for you?

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There are many methods available for reducing heavy metals at their source–before they enter our food and bodies. Chemically engineered methods such as reverse osmosis, ion exchange, and chemical precipitation have been in use for a while, but there are also some emerging technologies that utilize the natural power of plants to absorb heavy metals directly from the environment. We cover treatment options at home and beyond in this follow-up guide to heavy metals and bioaccumulation.

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